51254568 has 48 divisors (see below), whose sum is σ = 140587200. Its totient is φ = 16866720.

The previous prime is 51254549. The next prime is 51254587. The reversal of 51254568 is 86545215.

51254568 is a `hidden beast` number, since 51 + 2 + 545 + 68 = 666.

It is an interprime number because it is at equal distance from previous prime (51254549) and next prime (51254587).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1183 + ... + 10193.

It is an arithmetic number, because the mean of its divisors is an integer number (2928900).

Almost surely, 2^51254568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51254568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70293600).

51254568 is an abundant number, since it is smaller than the sum of its proper divisors (89332632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51254568 is a wasteful number, since it uses less digits than its factorization.

51254568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9102 (or 9095 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 51254568 is about 7159.2295674884. The cubic root of 51254568 is about 371.4589776742.

The spelling of 51254568 in words is "fifty-one million, two hundred fifty-four thousand, five hundred sixty-eight".